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-rw-r--r--arch/xtensa/lib/ashldi3.S29
1 files changed, 29 insertions, 0 deletions
diff --git a/arch/xtensa/lib/ashldi3.S b/arch/xtensa/lib/ashldi3.S
new file mode 100644
index 0000000000..cd6b731215
--- /dev/null
+++ b/arch/xtensa/lib/ashldi3.S
@@ -0,0 +1,29 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later WITH GCC-exception-2.0 */
+#include <linux/linkage.h>
+#include <asm/asmmacro.h>
+#include <asm/core.h>
+
+#ifdef __XTENSA_EB__
+#define uh a2
+#define ul a3
+#else
+#define uh a3
+#define ul a2
+#endif /* __XTENSA_EB__ */
+
+ENTRY(__ashldi3)
+
+ abi_entry_default
+ ssl a4
+ bgei a4, 32, .Llow_only
+ src uh, uh, ul
+ sll ul, ul
+ abi_ret_default
+
+.Llow_only:
+ sll uh, ul
+ movi ul, 0
+ abi_ret_default
+
+ENDPROC(__ashldi3)
+EXPORT_SYMBOL(__ashldi3)